Noise in cabin while accelerate / raise vehicle may be due to Engine Injectors.

I have purchased new Verna Diesel SX+ Automatic on Ganesh Chaturthi 13th Sep 2018. There is noise comes inside cabin & knocking when you accelerate / raise your vehicle. thsi is happening every time when you apply the brakes & again you start accelerate / raise it, noise starts. This is very much irritating & distracting concentration on vehicle driving. Very much disappointed for a vehicle worth of Rs.16 Lacs.